Position adjustment of a vehicle car body

Abstract

The invention relates to the position adjustment of a car body ( 1 ) of a track-guided vehicle, particularly of a rail vehicle, with regard to at least one undercarriage ( 5 ) of the vehicle. To this end, a transversal acceleration of the car body ( 1 ) transversal to a car body longitudinal axis is determined and a transversal position of the car body ( 1 ) with regard to the at least one undercarriage ( 5 ) is adjusted according to the determined transversal acceleration. A first transversal acceleration of the car body ( 1 ) in a first transverse direction transversal to the car body longitudinal axis and a second transversal acceleration of the car body ( 1 ) in a second transverse direction transversal to the car body longitudinal axis and transversal to the first transverse direction are determined.

1 . A device for the position adjustment of a car body ( 1 ) of a track-guided vehicle, in particular a rail vehicle, with regard to at least one undercarriage ( 5 ) of the vehicle, with at least one actuator ( 7 ) for the adjustment of a transversal position of the car body ( 1 ) relative to the undercarriage ( 5 ) transversal to a car body longitudinal axis, a transversal acceleration measuring device for determining the transversal acceleration of the car body ( 1 ) and an adjustment device ( 20 ) for the adjustment of the relative transversal position of the car body ( 1 ) as a function of the measured transversal acceleration of the car body (I), whereby the transversal acceleration measuring device is connected to the adjustment device ( 20 ) and whereby the adjustment device ( 20 ) is connected to the actuator ( 7 ), 
 characterised in that    the transversal acceleration measuring device exhibits a first transversal acceleration sensor for the measurement of the transversal acceleration of the car body ( 1 ), which measures the transversal acceleration in a first transversal direction transversal to the car body longitudinal axis, and that the transversal acceleration measuring device exhibits a second transversal acceleration sensor for the measurement of the transversal acceleration of the car body ( 1 ), which measures the transversal acceleration in a second transversal direction transversal to the car body longitudinal axis and transversal to the first transversal direction.    
   
   
       2 . The device according to  claim 1 , with at least two transversal acceleration measuring devices, for the measurement of the transversal acceleration at different points in the longitudinal direction of the car body ( 1 ).  
   
   
       3 . The device according to  claim 1 , with a position measuring device for the measurement of a position of the car body (I) with regard to at least one undercarriage ( 5 ), whereby the position measuring device exhibits means for the measurement of the relative position in relation to two degrees of freedom for movements transversal to the car body longitudinal axis.  
   
   
       4 . The device according to  claim 3 , whereby the position measuring device exhibits a first transversal position sensor for the measurement of the relative transversal position of the car body ( 1 ), which measures the transversal position in a first transversal direction transversal to the car body longitudinal axis, and whereby the position measuring device exhibits a second transversal position sensor for the measurement of the relative transversal position of the car body ( 1 ), which measures the transversal position in a second transversal direction transversal to the car body longitudinal axis and transversal to the first transversal direction.  
   
   
       5 . The device according to  claim 3 , with at least two position measuring devices for the measurement of the relative position at different places and/or in different areas in the longitudinal direction of the car body ( 1 ).  
   
   
       6 . The device according to  claim 1 , whereby the minimum of one actuator ( 7 ) exhibits a hydro-pneumatic device, with 
 A container ( 51 ), which exhibits a diaphragm ( 57 ) separating a chamber ( 53 ) containing gas and a chamber ( 55 ) containing fluid, and    a choke ( 63 ), which chokes a volume flow into and/or out of the chamber ( 55 ) containing the fluid from and/or to a storage vessel.    
   
   
       7 . The device according to  claim 1 , whereby the device exhibits a first actuator ( 7 ) and a second actuator ( 7 ), whereby the actuators ( 7 ) are aligned and arranged in such a way that they can change the transversal position of the car body ( 1 ) in a common transversal direction, whereby the actuators ( 7 ) are in each case antagonistically actuatable by the application of an operating pressure and whereby the device exhibits means for the adjustment and/or delimitation of the sum of the operating pressures.  
   
   
       8 . A method for the position adjustment of a car body ( 1 ) of a track-guided vehicle, in particular a rail vehicle, with regard to at least one undercarriage ( 5 ) of the vehicle, whereby 
 A transversal acceleration of the car body ( 1 ) transversal to a car body longitudinal axis is determined, and    depending on the transversal acceleration, a transversal position of the car body ( 1 ) with regard to the minimum of one undercarriage ( 5 ) is adjusted,    characterised in that    a first transversal acceleration of the car body ( 1 ) is determined in a first transversal direction transversal to the car body longitudinal axis and a second transversal acceleration of the car body (I) is determined in a second transversal direction transversal to the car body longitudinal axis and transversal to the first transversal direction.    
   
   
       9 . The method according to  claim 8 , whereby the second and/or at least a higher temporal derivation of the first and/or second transversal acceleration of the car body ( 1 ) is formed, and, dependant on this, the transversal position of the car body ( 1 ) is adjusted.  
   
   
       10 . The method according to  claim 8 , whereby the first and/or second transversal acceleration of the car body ( 1 ) is determined for at least two different places and/or areas in the longitudinal direction of the car body ( 1 ), and, dependent on this, the relative transversal position of the car body ( 1 ) is adjusted at two different positions in the longitudinal position of the car body ( 1 ).  
   
   
       11 . The method according to  claim 10 , whereby, from the determined values of the transversal accelerations of the car body ( 1 ), at the minimum of two different places, a turn acceleration of the car body ( 1 ) about a high axis is calculated.  
   
   
       12 . The method according to  claim 10 , whereby, from the determined values of the transversal accelerations of the car body (I), at the minimum of two different places and/or areas, the first and/or at least one higher temporal derivation of a turn acceleration of the car body ( 1 ) about a high axis is calculated, and, dependent on this, the relative transversal position is adjusted at two different places in the longitudinal direction of the car body ( 1 ).  
   
   
       13 . The method according to  claim 8 , whereby, with regard to the relative transversal position of the car body ( 1 ), frequency ranges are considered and influenced with a frequency less than or equal to 10 Hz, in particular less than or equal to 7 Hz.  
   
   
       14 . The method according to  claim 8 , whereby, with regard to the relative transversal position of the car body ( 1 ), frequency ranges are considered and influenced with a frequency less than or equal to 4 Hz, in particular less than or equal to 2 Hz, and whereby the transversal acceleration of the car body ( 1 ) is evaluated in a frequency range with a higher frequency and is taken into consideration during the adjustment of the relative transversal position.  
   
   
       15 . The method according to  claim 1 , whereby, during a determination of a manipulated variable for the adjustment of the relative transversal position of the car body ( 1 ), at least one characteristic of the movement behaviour of the car body ( 1 ) is taken into consideration, in particular a characteristic for the excitation of oscillations of the car body ( 1 ), and whereby, by repeated evaluation of measured values and by temporal extrapolation of the movement behaviour of the car body ( 1 ), a possible future movement state of the car body ( 1 ) is calculated and taken into consideration in the determination of the manipulated variable.